Female Flower of Jug Ians regia and a few allied Genera . 629 
marked, while the peripheral outline is strictly circular. This is shown in 
Text-fig. II. x. 
It is tempting but probably at pre- 
sent unsafe to see in this structure 
a vestige of the canopy which is so uni- 
versally present in the ‘ Lagenostoma ’ 
series of Palaeozoic ovules and persists 
clearly in Bennettites Morierei. 
Summary of results in Julgans 
regia. 
1 . The female flowers of Julgans 
regia exhibit interesting phases of re- 
duction as follows : — 
(a) The origin of a dimerous con- 
dition from a trimerous. 
(b) Barren placentae with a vas- 
cular supply. 
(e) One mode of the phylogenetic 
origin of the orthotropous 
basal ovule from an anatro- 
pous, parietal type. 
2. The above explanation of the 
female flower of Juglans tends to reduce 
the importance of the divergent characters 
of J uglandaceae and Salicaceae. We refer 
to the following characters : — 
(a) The non-contribution of the 
axis to the ovary. 
( b ) The presence of packing tissue 
originating from the funicle 
and placenta. 
(c) The parietal placentation of 
the anatropous ovule. 
Myrica Gale. 
As the account given by E. M. Ker- 
shaw 1 of the vascular supply of the so- 
called ‘ basal ’ ovule of Myrica Gale did 
not appear to us in harmony with the 
view that it was appendicular, we have 
made a careful investigation of the vas- 
Text-fig. V. 1-4. Myrica Gale. 
Four diagrams, of which i is from a longi- 
tudinal section in the antero-posterior plane. 
This shows the origin of the placental bundle 
from the anterior carpel. 2-4 are obliquely 
transverse to the peduncle. They show the 
region where the traces to all the floral 
leaves are given off. The lateral strands 
of the barren carpel which can be seen in 
2 b soon die out, but those of the anterior 
fertile carpel converge (3 v) and form the 
placental strand (4 v). 
b = barren placenta, d = dorsal bundles 
of carpel. /£ = bracteole. v = ventral bundle 
of carpel or placental bundle. 
cular supply of the whole flower, both in transverse and longitudinal micro- 
1 E. M. Kershaw, loc. cit., p. 355. 
U U 2 
